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Finding the Fourth Proportional to 65,809.44, 90,816.75 and 35,594.79

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Solution

The fourth proportional to 65,809.44, 90,816.75 and 35,594.79 is: 49,120.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,809.44 : 90,816.75 = 35,594.79 : x
  2. Step 2: Convert to fraction form
    65,809.44/90,816.75 = 35,594.79/x
  3. Step 3: Cross multiply
    65,809.44x = 90,816.75 × 35,594.79
  4. Step 4: Simplify right side
    65,809.44x = 3,232,603,144.73
  5. Step 5: Solve for x
    x = 3,232,603,144.73/65,809.44
  6. Step 6: Final answer
    x = 49,120.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.